| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.util; |
| |
| import static com.android.internal.util.Preconditions.checkArgumentFinite; |
| |
| /** |
| * Immutable class for describing width and height dimensions in some arbitrary |
| * unit. |
| * <p> |
| * Width and height are finite values stored as a floating point representation. |
| * </p> |
| */ |
| public final class SizeF { |
| /** |
| * Create a new immutable SizeF instance. |
| * |
| * <p>Both the {@code width} and the {@code height} must be a finite number. |
| * In particular, {@code NaN} and positive/negative infinity are illegal values.</p> |
| * |
| * @param width The width of the size |
| * @param height The height of the size |
| * |
| * @throws IllegalArgumentException |
| * if either {@code width} or {@code height} was not finite. |
| */ |
| public SizeF(final float width, final float height) { |
| mWidth = checkArgumentFinite(width, "width"); |
| mHeight = checkArgumentFinite(height, "height"); |
| } |
| |
| /** |
| * Get the width of the size (as an arbitrary unit). |
| * @return width |
| */ |
| public float getWidth() { |
| return mWidth; |
| } |
| |
| /** |
| * Get the height of the size (as an arbitrary unit). |
| * @return height |
| */ |
| public float getHeight() { |
| return mHeight; |
| } |
| |
| /** |
| * Check if this size is equal to another size. |
| * |
| * <p>Two sizes are equal if and only if both their widths and heights are the same.</p> |
| * |
| * <p>For this purpose, the width/height float values are considered to be the same if and only |
| * if the method {@link Float#floatToIntBits(float)} returns the identical {@code int} value |
| * when applied to each.</p> |
| * |
| * @return {@code true} if the objects were equal, {@code false} otherwise |
| */ |
| @Override |
| public boolean equals(final Object obj) { |
| if (obj == null) { |
| return false; |
| } |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof SizeF) { |
| final SizeF other = (SizeF) obj; |
| return mWidth == other.mWidth && mHeight == other.mHeight; |
| } |
| return false; |
| } |
| |
| /** |
| * Return the size represented as a string with the format {@code "WxH"} |
| * |
| * @return string representation of the size |
| */ |
| @Override |
| public String toString() { |
| return mWidth + "x" + mHeight; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public int hashCode() { |
| return Float.floatToIntBits(mWidth) ^ Float.floatToIntBits(mHeight); |
| } |
| |
| private final float mWidth; |
| private final float mHeight; |
| } |